Conjunctions

Conjunctions are words used to join words, group of words and sentences together.

Tim and Allen are good friends.
Is this coffee or tea?
I am thirsty but I do not want to drink the dirty water.

Look at the sentences. We can see that conjunctions link up the two underlined parts of the sentences.
Conjunctions join sentences or words together but each one is used in a different case.

‘But‘ is used to join two words or sentences which have opposite meanings.
Example: Mary is tall but her sister is short.

‘And‘ is used to join words or sentences which are not opposites. It also means ‘together’.
Example: John and Marek are friends.

‘Or‘ is used when only one of the words or sentences is true.
Example: I am going to the party with Jane or Susan.